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Round gobies???

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Hi I'm new. I've recently just given up keeping saltwater and decided to try Cold water tank with round gobies. I usually catch a couple by a port near my house most of them not being any bigger than four inches( my tank is 29 gallons) I've tried to keep one in full salt once but died of lip rot. Anyway I've been in in aquarium keeping for 6 years now and know most of the basics on saltwater and freshwater.

round gobies are an invasive species in north america. most places have a law that requires any caught round gobies to be killed on the spot. you could also get in trouble for keeping them live. regardless of that though, they are very easy to keep and breed like crazy.

Invasive ? yes. can humans ever eradicate them? no. you said yourself that they breed like crazy, so i see no problem (other than the law) with someone keeping a couple in captivity, just for the sake of studying them and once that is done, euthinize never release.

That is true, but We arent here to debate whether a law makes sense. If there is already one in place, then maybe the best idea is to follow It. Law enforcement will not care how little sense a law makes to you.

round gobies are an invasive species in north america. most places have a law that requires any caught round gobies to be killed on the spot. you could also get in trouble for keeping them live. regardless of that though, they are very easy to keep and breed like crazy.

Well is there any permit that I can get so that it's legal? I've already seen people taking them even while the "fish police" are around.

getting a permit would be a major hassle. usually only accredited zoological organizations can get permits for illegal fish. why not look into some of the legal goby species? there are many that are much more colorful than the round gobies.